MADAGASCAR AGATE FOR SALE

Madagascar is world renown for the generous variety of minerals produced as a result of millions of years of volcanic activity. Agate formations are no exception, with a diverse selection of agate having been discovered, including carnelian agate, banded agate, blue agate, dendritic agate, etc..

Agate is a variety of microcrystalline quartz that displays translucence and in some cases banding. Agate primarily forms when silica-rich fluids fill pockets within rock and/or fossils, resulting in deposition of the silica along the walls of the rock. This process can result in banding patterns as the composition and impurities of the fluids change over time. These banding patterns can either form as flat layers or rounded layers, depending on the surfaces available for deposition.
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19 Items ($15 to $375)